SM15T33AY SM15T33AY is a unidirectional TVS diode from STMicroelectronics. It features 28.2V reverse standoff voltage, 59V clamping voltage, and 1500W peak pulse power in a SMC package.
Mfr Part #:

SM15T33AY

Available from 1 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
SM15T33AY is a unidirectional TVS diode from STMicroelectronics. It features 28.2V reverse standoff voltage, 59V clamping voltage, and 1500W peak pulse power in a SMC package.
Total Stock: 12,500 pcs
$ Price Range: $0.38 - $1.00

SM15T33AY Available from 1 distributor

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SM15T33AY Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Applications
Automotive Grade
Current
Industrial Grade
Medical Grade
Military Grade
Mounting Type
Operating Temperature
Power
Power Line Protection
Reverse Standoff Voltage
Supplier Device Package
Tape & Reel
Type
Unidirectional Channels
Voltage

SM15T33AY Description

Short technical summary and product information.

The SM15T33AY is a unidirectional Transient Voltage Suppression (TVS) diode manufactured by STMicroelectronics. Designed for automotive applications, it provides protection against voltage transients by clamping overvoltage events. The device has a reverse standoff voltage of 28.2V and a maximum clamping voltage of 59V at a peak pulse current of 169A (8/20µs waveform).

 

With a peak pulse power rating of 1500W (1.5kW), the SM15T33AY can handle significant surge energy. The device is unidirectional, making it suitable for DC line protection. It is not designed for power line protection.

 

The SM15T33AY is mounted using surface mount technology and is packaged in a DO-214AB (SMC) case. The operating temperature range is -40°C to 150°C (junction temperature). The device is rated RoHS3 compliant and REACH unaffected, with a Moisture Sensitivity Level of 1 (unlimited).

 

The SM15T33AY is suitable for use in automotive electronics, industrial systems, and other applications requiring robust transient voltage protection. Its compact SMC package allows for space-efficient PCB layouts.

SM15T33AY Quick Information

Product Type: TVS Diode
Canonical Name: STMicroelectronics SM15T33AY TVS Diode
Subcategory: Unidirectional TVS

SM15T33AY Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

SM15T33AY Estimated Pricing

Qty Low High
1+ $1.00 $1.00
10+ $0.82 $0.82
100+ $0.59 $0.59
500+ $0.47 $0.47
1,000+ $0.47 $0.47
2,500+ $0.40 $0.40
5,000+ $0.38 $0.38

Estimated market price range - modelled values for guidance only, not live distributor offers.

SM15T33AY Features

  • Unidirectional TVS diode for DC line protection.
  • 28.2V reverse standoff voltage rating.
  • 59V maximum clamping voltage at 169A.
  • 1500W peak pulse power capability.
  • Automotive-grade, -40°C to 150°C operation.

SM15T33AY Applications

  • Used in automotive electronic control units.
  • Protects voltage rails in industrial equipment.
  • Suitable for surge protection in 24V systems.

SM15T33AY FAQs

7 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage of the SM15T33AY?

28.2V maximum.

What is the clamping voltage of the SM15T33AY?

59V maximum at 169A peak pulse current.

What is the peak pulse current rating?

169A (8/20µs waveform).

What package is the SM15T33AY available in?

DO-214AB (SMC) surface mount package.

Is the SM15T33AY unidirectional or bidirectional?

Unidirectional, with 1 channel.

What is the peak pulse power rating?

1500W (1.5kW).

What is the operating temperature range?

-40°C to 150°C (junction temperature).

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